Date: Mon, 6 Jan 2003 04:30:34 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: Andy Farkas <andyf@speednet.com.au>, <freebsd-current@FreeBSD.ORG> Subject: Re: kernel compile bloat Message-ID: <20030106042136.F590-100000@gamplex.bde.org> In-Reply-To: <20030105154232.48bc4879.Alexander@Leidinger.net>
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On Sun, 5 Jan 2003, Alexander Leidinger wrote: > On Sun, 5 Jan 2003 22:14:26 +1000 (EST) > Andy Farkas <andyf@speednet.com.au> wrote: > > > > > Why does compiling a kernel (make buildkernel KERNCONF=GENERIC) take > > 7 times as much space on 5.0-current than it does on 4.7-stable? > > > > On a 4.7-stable box, /usr/obj/usr/src/sys totals 34 MB. > > > > On a 5.0-current box, /usr/obj/usr/src/sys totals 270 MB! > > > > (for each box, I rm /usr/obj/*, make buildworld, then make buildkernel > > KERNCONF=GENERIC) > > Because debug symbols are enabled in 5.0 for kernel compiles (the > installed kernel is without debug symbols, but in your kernel build > directory should also be a much larger kernel.debug). It also builds modules. Normal bloat for -current is a measly factor of 2 or so. My kernel compile directory has size 340MB, but it has 9 kernels including GENERIC and LINT and copies of *.o in all of them. My normal kernel takes 12MB including 4M for a copy of *.o; GENERIC takes 135MB including 50MB for the copy. This is with modules avoided as far as possible; building modules would more than double the size of everything. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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